99620475 has 24 divisors (see below), whose sum is σ = 171869952. Its totient is φ = 50820000.

The previous prime is 99620471. The next prime is 99620489. The reversal of 99620475 is 57402699.

It is not a de Polignac number, because 99620475 - 2² = 99620471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99620471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27151 + ... + 30600.

It is an arithmetic number, because the mean of its divisors is an integer number (7161248).

Almost surely, 2^99620475 is an apocalyptic number.

99620475 is a deficient number, since it is larger than the sum of its proper divisors (72249477).

99620475 is a wasteful number, since it uses less digits than its factorization.

99620475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57787 (or 57782 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 99620475 is about 9981.0057108490. The cubic root of 99620475 is about 463.5709392671.

The spelling of 99620475 in words is "ninety-nine million, six hundred twenty thousand, four hundred seventy-five".